74LVC646A Octal Bus Transceiver/register; 3-state

The 74LVC646A is a high-performance, low-power, low-voltage, Si-gate CMOS device and superior to most advanced CMOS compatible TTL families. Inputs CAN be driven from either 3.3 V or 5 V devices. In 3-state operation, outputs CAN handle 5 V. This feature allows the use of these devices as translators in a mixed 3.3 V and 5 V environment. The 74LVC646A consists of non-inverting Bus Transceiver circuits with 3-state outputs, D-type Flip-Flops and control circuitry arranged for multiplexed transmission of data directly from the internal Registers Data on the A or B bus will be clocked in the internal Registers as the appropriate Clock (CPAB or CPBA) goes to a HIGH Logic level. Output enable (OE) and direction (DIR) inputs are provided to control the transceiver function. In the transceiver mode, data present at high-impedance port may be stored in either the A or B Register or in both. With the select source inputs (SAB and SBA) stored and real-time (transparent mode) data CAN be multiplexed. The direction (DIR) input determines which bus will receive data when OE is active (LOW). In the isolation mode (OE = HIGH), A data may be stored in the B Register and/or B data may be stored in the A Register When an output function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses A or B may be driven at a time.
By NXP Semiconductors
Part Manufacturer Description Datasheet Samples
SN74LVC646ANSRG4 Texas Instruments IC LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24, Bus Driver/Transceiver
SN74LVC646ADW Texas Instruments Octal Bus Transceiver And Register With 3-State Outputs 24-SOIC -40 to 85
SN74LVC646ANSR Texas Instruments LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74LVC646ADWG4 Texas Instruments Octal Bus Transceiver And Register With 3-State Outputs 24-SOIC -40 to 85
SN74LVC646APWR Texas Instruments Octal Bus Transceiver And Register With 3-State Outputs 24-TSSOP -40 to 85
SN74LVC646ADBR Texas Instruments Octal Bus Transceiver And Register With 3-State Outputs 24-SSOP -40 to 85
SN74LVC646ANSRE4 Texas Instruments LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24, GREEN, PLASTIC, SOP-24
SN74LVC646APW Texas Instruments Octal Bus Transceiver And Register With 3-State Outputs 24-TSSOP -40 to 85
74LVC646A 's Packages74LVC646A 's pdf datasheet
74LVC646AD SO
74LVC646ADB SSOP
74LVC646APW TSSOP




74LVC646A Pinout, Pinouts
74LVC646A pinout,Pin out
This is one package pinout of 74LVC646A,If you need more pinouts please download 74LVC646A's pdf datasheet.

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